Molded plastic storage/display case with lid that lifts straight up and off. has 35 cells and can store and protect up to 35 marbles (70 if you double them up, as you can do with 5/8" and smaller marbles. )

These were invented by Cathy Runyan-Svacina ("The Marble Lady") after brainstorming for an affordable way to store, categorize and protect her many thousands of collectible marbles. Completely transparent design allows viewing from all sides while ensuring the marbles never strike each other.